• Journal of the Korean Society of Food Culture
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• v.27 no.3
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• pp.294-303
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• 2012

This study was conducted to compare the preference and satisfaction for Korean traditional foods (Jeonju Bibimbap, Daetongbap, Jeonbokjuk, Jorangiddockguk, Hobakbumbuk, Darkgalbee, Eonyang Bulgogi, Moyackgwa, Insam Jeonggwa, Maejackgwa) in foreigners and Koreans. In this study, 27 foreign and 31 Korean university students were surveyed. Statistical analysis and Mann-Whitney U test were performed using the SPSS statistical package (17.0). The major findings were as follows: 1) Foreigners had higher experience of eating Darkgalbee (84.6%), Jeonju Bibimbap (80.8%), Daetongbap (53.8%), and Jeonbokjuk (53.8%) among Korean traditional foods, whereas their eating experience of Insam Jeonggwa (3.8%), Maejackgwa (11.5%), Moyackgwa (15.4%) and Jorangiddockguk (23.1%) was lower. 2) Foreigners and Koreans both liked sweet taste, but disliked sour taste, bitter taste, garlic flavor, sesame flavor, and soy sauce flavor among the sensory characteristics of Korean traditional foods. 3) Foreigners scored their overall satisfaction of Korean traditional foods in the order of Jeonju Bibimbap ($7.70{\pm}0.95$), Eonyang Bulgogi ($7.62{\pm}2.10$), Daetongbap ($7.59{\pm}1.60$), Darkgalbee ($7.20{\pm}1.56$), and Jeonbokjuk ($6.67{\pm}1.64$), whereas Koreans rated higher scores for Eonyang Bulgogi ($8.28{\pm}1.19$), Darkgalbee ($8.20{\pm}1.00$), Jeonju Bibimbap ($7.73{\pm}1.08$), Jeonbokjuk ($7.69{\pm}1.44$), and Moyackgwa ($7.43{\pm}1.52$).

• The Korean Journal of Food And Nutrition
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• v.15 no.3
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• pp.228-234
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• 2002

In this paper, we proposed a preparation of Jeung- pyun (Korean fermented steamed rice cake with sour taste and spongy texture) using fuzzy theory. Before this preparation was introduced, it thoroughly analyzed the existing data of Jeung-pyun preparation with sensory evaluation and instrumental measurement. It defined a membership auction of Fuzzy set by analyzed three sorts of data on Jeung-pyun. And it established the Fuzzy model using the quantity of materials as input, such as rice, flour, wheat flour and fermentation time, and the sensory test scores as output, such as grain, softness, sourness, chewiness, overall quality, pH value and volume, respectively. We got the results that the Fuzzy model was accord with the conventional method with sensory evaluation. And the validity of this method is shown through the computer simulation of the test data. Therefore, the proposed method by Fuzzy model will apply to make Jeung-pyun without sensory evaluation. This study will contribute to develop standard preparation for korean foods and expert system of preparation using computer system.

• Korean journal of food and cookery science
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• v.17 no.4
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• pp.338-343
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• 2001

This study was carried out to analyze the characteristics of Dongchimi(watery radish kimchi) juice while fermenting the samples prepared at various salt concentrations(2, 2.5, and 3 %) and fermentation temperatures(4$^{\circ}C$, 12$^{\circ}C$, and 12$^{\circ}C$ for 12 hr followed by 4$^{\circ}C$). The changes in colour, total vitamin C and free sugar contents were analyzed, and sensory evaluation was performed. As the fermentation proceeded, the “L” value was decreased and “a” and “b” values were increased in all samples. Total vitamin C contents increased up to 26-33 days and decreased thereafter in the samples fermented at 4$^{\circ}C$ and those fermented at 12$^{\circ}C$ followed by 4$^{\circ}C$. In Dongchimi fermented at 12$^{\circ}C$, vitamin C contents increased up to 12-15 days. Glucose, fructose and sucrose were detected in Dongchimi juice. The total content of free sugars in Dongchimi juice was the highest in the samples fermented at 12$^{\circ}C$ followed by 4$^{\circ}C$ . Sensory evaluation was performed for sour taste, salty taste, carbonated flavor, offensive odor, overall preference and clearance of the juice. In overall preference, Dongchimi juice fermented at 12$^{\circ}C$ followed by 4$^{\circ}C$ was the best.

• Korean journal of food and cookery science
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• v.24 no.3
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• pp.312-324
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• 2008

In this study, we investigated the names and various types of "kwa-jung" along with their recipes and ingredients occurring in Korean cookbooks published before the 17th century. The kwa-jungs were classified into 7 groups including Yoomilkwa, Yookwa, Dasik, Junkwa, Kwapyun, Yutganjung and Dang. A total of 72 kinds of kwa-jung were found. 26 kinds of Yoomilkwa, 18 kinds of Yookwa, 7 kinds of Dasik, 10 kinds of Junkwa, 1 kind of Kwapyun, 3 kinds of Yutganjung and 8 kinds of Dang. Among the types of Yoomilkwa, Yackwa was recognized as the best food according to the references. Also the cooking methods for items had a tendency to become simpler as society became modernized. Original and rare Ingredients were often substituted with other items that could be found more easily where people lived As recorded, the Yookwa group included kangyung, sanja, and bingsakwa. And as society became modernized, people tended to buy Yookwa in the store rather than making it at home due to its complicated and often difficult cooking process. The Dasik items were a kneaded mixture of flour, or the flour of chestnuts, with honey. These were formed into various patterns like birds, animals, butterflies, tree leaves and flowers, or as ki-wha by using printing cooking utensils Honey was used as a sweetener and as a combining material. The Junkwa consisted of roots or fruits that could be easily obtained these cooked or raw foodstuffs were then mixed with sugar and simmered. The Kwapyun used sour fruit juices as a main ingredient. These were then combined with sugar and simmered and allowed to harden. Then they were cut into square shapes after cooling. Yutkangjung was a mixture of yut, chochung, honey or syrup and pine nuts. which was combined over low heat. After mixing and stirring it was cut into square shapes. Finally, the Yut was typically cooked with grains and powdered malt and stirred until thickened.

• Korean Journal of Food Science and Technology
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• v.22 no.7
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• pp.865-870
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• 1990

Four different fermentation methods of Korean cucumber pickles were compared with conventional method, pickling in 10% NaCl solution at $25^{\circ}C$, in order to improve the storage stability. The methods studied were brining the cucumbers in hot($90^{\circ}C$) 10% NaCl solution(method A), addition of KCl and $CaCl_2$ into the hot salt solution(method B) addition of a sodium salts mixture of phosphates, nitrite and citrate into half fermented pickles prepared by method B(method C), substituted nitrite and citrate with KCl in method C(method D). It was found from results that the method C and D reduced the decreasing rate of pH very significantly by more than 3 fold and method B also showed the reducing effect. However, higher total acidity was measured for method C and D, which was opposite to pH results. Changes in hardness of cucumber showed little difference to control while color of brining solution exhibited some difference in their Hunter values. Organoleptic comparison showed a clear effect of salts mixtures by receiving the significant higher scores in fresh cucumber flavor and lower values in yeast moldy and sour flavor for method C and D when those were compared to control.

• Journal of the Korean Society of Food Science and Nutrition
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• v.43 no.7
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• pp.1042-1047
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• 2014

This study examined the quality characteristics of Yanggaeng added with tomato powder (0, 5, 10, 15, and 20%) and oligosaccharides instead of red beans and sugar. The moisture content of tomato Yanggaeng was 45.89~33.64% and was highest in the control group. The pH ranged 3.96~6.24 and significant decreased with the addition of tomato powder. Hunter's color value, lightness (L value) were the highest in Yanggaeng added with 20% tomato powder. Redness (a value) increased with tomato powder content, except for 20% tomato powder. Yellowness (b value) significantly increased with tomato powder content (P<0.05) but decreased with 20% tomato powder. In the texture profile analysis, hardness, cohesiveness, gumminess, and chewiness significantly decreased (P<0.05) with the addition of tomato powder. Total soluble solid content ($^{\circ}Brix$) was the highest (5.16) in the control group, whereas that of tomato Yanggaeng ranged 4.46~4.92 and significantly decreased (P<0.05) with the addition of tomato powder. The antioxidative activity based on 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity of Yanggaeng increased with the concentration of tomato powder, although those of Yanggaeng added with 15% and 20% tomato powder were not significantly different (P<0.05). Yanggaeng added with 5 and 10% tomato powder showed acceptable sensory properties, including color, flavor, sweet taste, sour taste, and overall quality. In terms of sensory evaluation and antioxidant activity, the results show that Yanggaeng added with 10% tomato powder was the best, but more research should be conducted in order to improve sensory acceptability.

• Journal of the East Asian Society of Dietary Life
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• v.15 no.5
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• pp.516-523
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• 2005

This study was performed to investigate dietary behaviors and consumption of health food in cancer patients. The subjects were 163 cancer patients recruited from the general hospital in Seoul, Korea. The data were obtained by the structured self administered questionnaire. The mean age of subjects was 51 years. Most of subjects didn't eat the visual fat of meat and chicken skin. The mealtime of the subjects was generally regular and most of subjects had breakfast. The subjects of this survey liked to eat foods with sweet taste but disliked to eat hot, salty and sour taste ones. The preference for fish, marine products and vegetables was high but that for instant foods and frying foods was very low. Most of subjects consumed the foods that is generally known as anticancer foods such as vegetables and fruits. On the other hand, most of subjects didn't intake butter, margarine, and frying foods that is known as risk factors of cancer. The majority of subjects$(84.7\%)$ consumed the health food The main reasons for taking health foods by subjects were to cure disease$(58.0\%)$, to prevent disease$(45.3\%)$, to supply nutrients$(39.3\%)$, to maintain the mental state$(12.7\%)$ and to recover fatigue$(10.7\%)$. Majority of subjects$(66.0\%)$ spent money more than 200,000 won/month to buy health foods. The purchasing channels of health foods by subjects were recommendation by family or friend$(64.0\%)$, by physician/pharmacist$(18.0\%)$ and by nutritionist or dietician(6.0), and advertisement through TV or radio$(12.0\%)$. The types of taking health foods of the subjects were vegetable extracted food$(60.0\%)$, mushrooms$(51.3\%)$, Lactobacillus food$(25.3\%)$, enzyme food$(22.6\%)$ calcium containing food$(20.0\%)$ and so on. The results of the current study show that although many cancer patients already practice healthy dietary behaviors, there is a substantial proportion who do not and most of cancer patients consume health foods.' Further intervention is needed to explore the effect of health foods in cancer patients

• Journal of the East Asian Society of Dietary Life
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• v.15 no.5
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• pp.598-605
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• 2005

Effects of chitosan-ascorbate(CA) and calcium lactate(CL) on fermentation and quality of squid sikhae were investigated CA and LA were added at $0.5\%$ (designated CA1 and CL1) and $1.0\%$(CA2 and CL2) concentrations, respectively and fermented for 12 days at $10^{\circ}C$. pH of CA-added sikhae was higher than that of control, while acidity of the former was lower than that of the latter. During 12 days of fermentation, CA-added sikhae showed higher protease activity than control by $2.3\~2.6$ times and CL-added sikhae by $2.8\~3.6$ times. At 12 days of fermentation, CA-added sikhae revealed higher protease activity than control by $1.2\~1.4$ times and CL-added sikhae by $1.5\~1.9$ times. CA-added sikhae also showed higher amino-nitrogen content than control by $1.4\~1.7$ times and CL-added sikhae by $1.9\~3.5$ times. In comparison of CA1 with CA2, CA2 showed all higher pH, protease and amylase activity, and amino-nitrogen content than CA1. In analysis of electrophoresis, molecular weights of major proteins in ~w squid were $116.9\~119.0$, 96.5 and 59.3kDa. However, after fermentation for 12 days, a protein band of 119.0kDa disappeared but a new protein band with below 14 kDa appeared in sikhae, especially CA-added sikhae. In sensory evaluation, the intensity of sour taste was the highest for control and the lowest for CA2. Softness of squid was the highest for control and the lowest for CA2. Overall acceptability was the best for CA2. In conclusion, these results suggest use of $1\%$ CA in sikhae preparation as addition of CA(CA2) increased the protease and amylase activity, nitrogen content of amino form, sensory acceptability as well as shelf-life of sikhae.

• Food Science and Preservation
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• v.20 no.3
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• pp.342-347
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• 2013

In recent years, polyphenol-rich herbs, fruits and processed foods, which are made of plant origin, have attracted much attention due to their potential health benefits. Pomegranate (Punica granatum L.) is an important source of bioactive compounds and has been used to treat diseases because of its medicinal properties. This research was focused on characterizing Korea's national cultivar and a similar product from California, USA. To evaluate their bioactive compounds and pharmacological activities, their anti-oxidation and cancer inhibition properties, as well as their organic acid and free sugar contents, were investigated. The national cultivar had low total sugar and high organic acid contents, contrary to the imported product. The results showed that the peel of national cultivar had high polyphenol and ellagic acid contents compared to imported product. The free radical scavenging capacity was evaluated via 2,2-diphenyl-1-picrylhydrazyl (DPPH) and its positive correlation with the total polyphenol contents was found. The anti-cancer activity of methanol extracts revealed growth inhibition against the prostate cancer cell. These results signify that while pomegranate, national cultivar, is more sour than the imported product, its health benefits could be excellent. Also, the polyphenol compound content of the non-edible part (such as the peel and the seed) was higher than that of the juice. Thus, it is suggested that the byproduct of the juice extraction could be potentially used in other fields such as medicine or dietary agents.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.10 no.1
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• pp.209-246
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• 1997

In the literatual study on the Ecthyma, the results were as follows. 1. The pathogenic factors of Ecthyma is divided three parts. One is exogenous pathogenic factors which including the wind evil, wind heat and toxic material produced by wetness evil. Another is endogenous pathogenic factors which including the declination of kidney-yang, impairment of the liver and kidney, the lower classes of yin-fire, accumulation of wetness-heat in the spleen asthenia, impairment of the liver and kidney, wetness-heat of three yang, asthenic heat-syndrome of three yin. The other is pathogenic factors neither endogenous nor exogenous which including the food and living, uncontrol sexual excess, anxiety and angry, injury of skin, injury of insects and animals. 2. Five viscera which was concerned with Ecthyma are liver, spleen and kidney. 3. Frequent region of Ecthyma are S-36(足三里) and C-7(陰交). External Ecthyma was rose to wetness-heat of three yang channel that cured easily. Internal Ecthyma was rose to asthenic heat-syndrome of three yin channel that cured hardly. 4. In the frequency of prescription, the most numerous prescription is Bojungikgitang(補中益氣湯) and the next are Kyukgigo(隔紙膏) and Yukmijihwanghwan(六味地滉丸). 5. In the frequency of medicine, the most medicine is Calomelas(輕粉) which included Hydrargyrum(水銀) and the next are Olibanum(乳香) and Resina Commiphorae Myrrhae(沒藥) which regulating vital energy and pain control medicine used that in order to destroy insects and remove polson. 6. In classification of the medical action, medicine of clearing away summer-heat and heat evil and activating blood circulation to dissipate blood stasis used to be very busy which in order to remove the disorder of vital energy for virulent heat-evil. 7. In classification of four characters, the most part is warm medicine, the next are cold and cool medicine and there is a few that is hot medicine. 8. In classification of five tastes, the most numerous tastes are bitter and acrid, the next are sweet, salty and sour tastes. 9. In classification of virulence of medicine, the most part is non-toxic, the next are weakly and deadly poison. 10. In classification of channel distribution, the most is the medicine that belongs to liver channel, the next are the lung, spleen, stomach and kidney channel.